And what if I just only want to fix the NPC's so they can use the old models? I'm browsing lines in creature display info and model data but can't find the correct lines for the NPC hairs also don't know what to do If I find them. If I delete the line it will use the basic data or just crash? Maybe I should add some entries in the info and data that refers for the old models?

Thanks for helping me anyway.

Also here are some shots about my problem.





These are the most annyoing, the Bloodelves the others are better but if I could manage to fix them would do with the others too.

Edit:

I messed up couple of hours. The guy who created the mod put the old models and anims for NPC-s in the patch too. Overwrote them and the NPC's started to use the WoD models but they lacked some textures, lip colors eye fingernail etc. ( messed with the Bloodelf Female only )

Not the Character's hairstyles. The NPC's, they are still using the old models and hairstyles but now their hair trying to use the new models hairs and breads but they cant. The most bugged NPCs are Dwarfes Humans Orcs and Bloodelves and maybe this problem causing a lot of wow error. That's why somebody said to create new CreatureModelData and CreatureDisplayInfo entries for the NPC's so they can use the old hairstyles and etc

you can make NPCs use old models
just create new CreatureModelData  and CreatureDisplayInfo entries

But how? I'm just an user not a modder